CN204304800U - A kind of alternating current-direct current mixing laminated bus for IGBT valve - Google Patents
A kind of alternating current-direct current mixing laminated bus for IGBT valve Download PDFInfo
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- CN204304800U CN204304800U CN201420496889.2U CN201420496889U CN204304800U CN 204304800 U CN204304800 U CN 204304800U CN 201420496889 U CN201420496889 U CN 201420496889U CN 204304800 U CN204304800 U CN 204304800U
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- laminated bus
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- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 230000005672 electromagnetic field Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to a kind of alternating current-direct current mixing laminated bus for IGBT valve, and IGBT valve comprises IGBT (1), radiator (2), DC capacitor (3), laminated bus (4) and ac bus (5); IGBT (1) is installed on radiator (2), and IGBT (1) is connected by laminated bus (4) with DC capacitor (3); Upper and lower two IGBT (1) of ac bus (5) short circuit form it and exchange output; Alternating current-direct current mixing laminated bus consists of dielectric film pressing the laminated bus (4) of ac bus (5) with DC side.The alternating current-direct current mixing laminated bus that the utility model provides is for completing the electrical connection of power circuit (IGBT) and DC capacitor; distributed inductance is reduced by the version of positive and negative stacked parallel distribution; thus reduce the peak-inverse voltage at power cell two ends; reduce power device to the requirement of voltage protection absorbing circuit; improve power device reliability of operation and stability; improve the integrated level of circuit simultaneously, be convenient to maintenance maintenance.
Description
Technical field
The utility model relates to a kind of IGBT valve of electric and electronic technical field, specifically relates to a kind of alternating current-direct current mixing laminated bus for IGBT valve.
Background technology
The executive component that IGBT valve is is switch with power electronic devices such as IGBT, its intelligent cell that power circuit, protection circuit, control circuit, self-diagnostic circuit and power electronic devices can be become one.The combination of this building block system of serial or parallel connection between unit can form the power electronic equipment of various different purposes.
In power electronic equipment, unit IGBT operates mainly on off state, and DC capacitor work during charge and discharge state, electric current during electric capacity charge and discharge constantly flows through dc bus.The inductance of dc bus self can have an impact to capacitor charge and discharge.Connect the ac bus of upper and lower two IGBT when many IGBT parallel connections use, because CURRENT DISTRIBUTION is uneven, device is caused to the skewness of thermal field, the IGBT of some position is easily because excess temperature causes damage simultaneously.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of alternating current-direct current mixing laminated bus for IGBT valve, this alternating current-direct current mixing laminated bus has been used for the electrical connection of power circuit (IGBT) and device (DC capacitor), distributed inductance is reduced by the version of positive and negative stacked parallel distribution, thus reduce the peak-inverse voltage at power cell two ends, reduce power device to the requirement of voltage protection absorbing circuit, make CURRENT DISTRIBUTION by ac bus evenly, improve power device reliability of operation and stability, improve the integrated level of circuit simultaneously, be convenient to maintenance maintenance.
The purpose of this utility model adopts following technical proposals to realize:
The utility model provides a kind of alternating current-direct current mixing laminated bus for IGBT valve, and described IGBT valve comprises IGBT 1, radiator 2, DC capacitor 3, laminated bus 4 and ac bus 5; Described IGBT 1 is installed on radiator 2, and described IGBT1 is connected with DC capacitor 3 laminated bus 4; Described ac bus 5 connects upper and lower two IGBT 1 and forms its interchange output; Its improvements are, described alternating current-direct current mixing laminated bus is formed by laminated bus 4 pressing of ac bus 5, dielectric film and DC side.
Further, described IGBT valve comprises protection absorption and control unit 6, power supply module 7 and mechanical cover 8; Described mechanical cover 8 comprise be arranged in parallel end face, bottom surface and the support bar that vertically arranges between end face and bottom surface; The size of described end face is less than bed-plate dimension; Described radiator 2 and ac bus 5 are installed on the bottom surface of mechanical cover 8, and described protection absorbs and control unit 6 and power supply module 7 are installed on the end face of mechanical cover 8; On the bottom surface that described DC capacitor 3 is vertically arranged at mechanical cover 8 and height higher than the end face of mechanical cover 8.
Further, described power supply module 7 is that device in IGBT valve is powered.
Further, described laminated bus 4 comprises positive direct-current bus and negative dc bus;
Laminated bus 4 and ac bus 5 being united two into one, namely possessing the function that laminated bus 4 is electrically connected with DC capacitor 3 for completing IGBT 1, and possess connection upper and lower two IGBT formation interchange output function; Positive direct-current bus and negative dc bus and the parallel distribution of ac bus 5, positive direct-current bus is between negative dc bus and AC bus, and described ac bus 5, positive direct-current bus and negative dc bus are crimped into by dielectric film and be integrated.
Further, the ac bus 5 in alternating current-direct current mixing laminated bus has circular hole, this circular hole size calculates according to AC electromagnetic field intensity; Described circular hole makes electric current be evenly distributed on ac bus 5, avoids the phenomenon that ac bus 5 local current concentrates heating occurs.
Compared with the prior art, the beneficial effect that the utility model reaches is:
1, integrated AC bus, its installation of DC side bus are more reliable, convenient;
2, because positive and negative stacked its stray inductance of parallel distribution of DC side bus is lower;
3, original ac bus adds surface area, better adds heat radiation;
4, AC is owing to being enclosed in dielectric film, better can reduce electromagnetic interference;
5, the alternating current-direct current mixing laminated bus that provides of the utility model is for completing the electrical connection of power circuit (IGBT) and device (DC capacitor); distributed inductance is reduced by the version of positive and negative stacked parallel distribution; thus reduce the peak-inverse voltage at power cell two ends; reduce power device to the requirement of voltage protection absorbing circuit; improve power device reliability of operation and stability; improve the integrated level of circuit simultaneously, be convenient to maintenance maintenance.
6, when many IGBT are in parallel, ac-side current is more evenly distributed, and ensures that every IGBT is operated in equal state.
Accompanying drawing explanation
Fig. 1 is the top view of the IGBT valve that the utility model provides;
Fig. 2 is the side view of the IGBT valve that the utility model provides;
Fig. 3 is the ac bus schematic diagram that the utility model provides;
Fig. 4 is the alternating current-direct current mixing laminated bus structure figure that the utility model provides;
Wherein: 1-IGBT, 2-radiator, 3-DC capacitor, 4-laminated bus, 5-ac bus, 6-protection absorbs and control unit, and 7-power supply module, 8-mechanical cover, 41-positive direct-current bus, 42-bears dc bus, 9-dielectric film.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
The top view of the IGBT valve that the utility model provides as shown in Figure 1, IGBT valve usually by IGBT 1, radiator 2, DC capacitor 3, laminated bus 4, ac bus 5, protection absorbs and control unit 6, power supply module 7, mechanical cover 8 form.Described IGBT 1 is installed on radiator 2, is connected, specifically as shown in Figure 2 with DC capacitor 3 by laminated bus 4.Upper and lower two IGBT of ac bus 5 short circuit form it and exchange output, and its profile as shown in Figure 3.
Described mechanical cover 8 comprise be arranged in parallel end face, bottom surface and the support bar that vertically arranges between end face and bottom surface; The size of described end face is less than bed-plate dimension; Described radiator 2 and ac bus 5 are all installed on the bottom surface of mechanical cover 8, and described protection absorbs and control unit 6 and power supply module 7 are all installed on the end face of mechanical cover 8; On the bottom surface that described DC capacitor 3 is vertically arranged at mechanical cover 8 and height higher than the end face of mechanical cover 8.Power supply module 7 is for powering for the device in IGBT valve.
The alternating current-direct current mixing laminated bus structure figure that the utility model provides as shown in Figure 4, laminated bus 4 and ac bus 5 form alternating current-direct current mixing laminated bus, described alternating current-direct current mixing laminated bus consists of dielectric film 9 pressing AC bus and DC side laminated bus, the alternating current-direct current mixing laminated bus becoming to be integrated.Be specially: laminated bus 4 comprises positive direct-current bus 41 and negative dc bus 42; Laminated bus 4 and ac bus 5 being united two into one, namely possessing the function that laminated bus 4 is electrically connected with DC capacitor 3 for completing IGBT 1, and possess connection upper and lower two IGBT formation interchange output function; Positive direct-current bus 41 and negative dc bus 42 and the parallel distribution of ac bus 5, positive direct-current bus is between negative dc bus and AC bus, and described ac bus 5, positive direct-current bus 41 and negative dc bus 42 are crimped into by dielectric film 9 and be integrated.Distributed inductance is reduced by the version of positive and negative stacked parallel distribution; thus reduce the peak-inverse voltage at power cell two ends; reduce power device to the requirement of voltage protection absorbing circuit; improve power device reliability of operation and stability; improve the integrated level of circuit simultaneously, be convenient to maintenance maintenance.
Ac bus 5 in alternating current-direct current mixing laminated bus has circular hole, and this circular hole size calculates according to AC electromagnetic field intensity; Described circular hole makes electric current be evenly distributed on ac bus 5, avoids the phenomenon that ac bus 5 local current concentrates heating occurs.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; with reference to above-described embodiment, the utility model is described in detail; those of ordinary skill in the field can modify to detailed description of the invention of the present utility model or equivalent replacement; these do not depart from any amendment of the utility model spirit and scope or equivalent replacement, are all applying within the claims of the present utility model awaited the reply.
Claims (5)
1., for an alternating current-direct current mixing laminated bus for IGBT valve, described IGBT valve comprises IGBT (1), radiator (2), DC capacitor (3), laminated bus (4) and ac bus (5); Described IGBT (1) is installed on radiator (2), and described IGBT (1) is connected with DC capacitor (3) laminated bus (4); Described ac bus (5) connects upper and lower two IGBT (1) and forms its interchange output; It is characterized in that, described alternating current-direct current mixing laminated bus is formed by laminated bus (4) pressing of ac bus (5), dielectric film and DC side.
2. alternating current-direct current mixing laminated bus as claimed in claim 1, is characterized in that, described IGBT valve comprises protection and absorbs and control unit (6), power supply module (7) and mechanical cover (8); Described mechanical cover (8) comprise be arranged in parallel end face, bottom surface and the support bar that vertically arranges between end face and bottom surface; The size of described end face is less than bed-plate dimension; Described radiator (2) and ac bus (5) are installed on the bottom surface of mechanical cover (8), and described protection absorbs and control unit (6) and power supply module (7) are installed on the end face of mechanical cover (8); On the bottom surface that described DC capacitor (3) is vertically arranged at mechanical cover (8) and height higher than the end face of mechanical cover (8).
3. alternating current-direct current mixing laminated bus as claimed in claim 2, is characterized in that, described power supply module (7) is powered for the device in IGBT valve.
4. alternating current-direct current mixing laminated bus as claimed in claim 1, it is characterized in that, described laminated bus (4) comprises positive direct-current bus and negative dc bus;
Laminated bus (4) and ac bus (5) are united two into one, namely possess the function that laminated bus (4) is electrically connected with DC capacitor (3) for completing IGBT (1), and possess connection upper and lower two IGBT formation interchange output function; Positive direct-current bus and negative dc bus and ac bus (5) parallel distribution, positive direct-current bus is between negative dc bus and AC bus, and described ac bus (5), positive direct-current bus and negative dc bus are crimped into by dielectric film and be integrated.
5. alternating current-direct current mixing laminated bus as claimed in claim 1, it is characterized in that, the ac bus (5) in alternating current-direct current mixing laminated bus has circular hole, and this circular hole size calculates according to AC electromagnetic field intensity; Described circular hole makes electric current be evenly distributed on ac bus (5), avoids the phenomenon that ac bus (5) local current concentrates heating occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496889.2U CN204304800U (en) | 2014-08-29 | 2014-08-29 | A kind of alternating current-direct current mixing laminated bus for IGBT valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496889.2U CN204304800U (en) | 2014-08-29 | 2014-08-29 | A kind of alternating current-direct current mixing laminated bus for IGBT valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204304800U true CN204304800U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420496889.2U Expired - Lifetime CN204304800U (en) | 2014-08-29 | 2014-08-29 | A kind of alternating current-direct current mixing laminated bus for IGBT valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204304800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017222114A1 (en) | 2017-12-07 | 2019-06-13 | Zf Friedrichshafen Ag | AC busbar for an inverter |
-
2014
- 2014-08-29 CN CN201420496889.2U patent/CN204304800U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017222114A1 (en) | 2017-12-07 | 2019-06-13 | Zf Friedrichshafen Ag | AC busbar for an inverter |
| DE102017222114B4 (en) | 2017-12-07 | 2024-03-21 | Zf Friedrichshafen Ag | AC power rail for an inverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: GLOBAL ENERGY INTERCONNECTION Research Institute Patentee after: State Grid Corporation of China Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: STATE GRID SMART GRID Research Institute Patentee before: State Grid Corporation of China |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170509 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: GLOBAL ENERGY INTERCONNECTION Research Institute Patentee after: State Grid Corporation of China Co-patentee after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE Patentee before: State Grid Corporation of China |
|
| TR01 | Transfer of patent right |